# Auto Battery, Terminal Corrosion

Without corrosion, the available starter current can be calculated with Ohm's Law:

The available starting power can be calculated from the power relationship.

How would these values be changed if there was a terminal resistance of 0.1 ohms?

 With corrosion Comparison
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# Auto Battery, Terminal Corrosion

With corrosion, the series resistance is 0.1 + 0.04 = 0.14 ohms.

The total power is

but not all of this reduced power goes to the starter.

 Without corrosion Comparison
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# Summary: Corrosion Effect on Auto Battery

 Without corrosion With corrosion Effect on headlights Vary parameters
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# Summary: Corrosion Effect on Auto Battery

 Effect on starter Vary parameters
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DC Circuits

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